Paper-stock-refining engine.



PATENTED MAY l5, 1906.

H. E. SAECKEE. EAPEE STOCK EEEINING ENGINE.

APPLICATION FILED 00T. 9,1'195.

2 SHEETS-SHEET 1.

www? w PQM.. MM

' E. G. SAEGKEE. PAPER STOCK EEEINIEG ENGINE.

APPLICATION FILED 00T. 9, 1905.

PATENTED MAY 15, 190e.

2 SHEETS-SHEET 2.

umiw. n. Guam nu. vwtanmoounms. wlsmmmn. n c.

UNITED STATES PATENT OFFICE.

HERMAN G. SAECKER, OF APPLETON, WISCONSIN.

w/wm, t may concern: Be it known that I, HERMAN G. SAnoxnn, a citizen ofthe United States,

PAPER-STOCK-REFINING ENGINE.

Specification of Letters Patent. Application filed October 9, 1905.Serial No. 28

knives are he residing at Ap- The end belts,

katented May 15, 1906.

in which a single set of ld, have, unlike the intermediate belts, but asingle set oi' cross-grooves, and at pieton, in the county of Outagamiean State the smaller end of the core a cylindrical belt 6o 5 ofWisconsin, have invented certain new and f is formed, corresponding inheight with the useful Improvements in Paper-Stock-Refinadjacent belt band separated therefrom by ing Engines, of which the following is aspecia space or groove. An annular band c', fitfication, reference beinghad to the accomted upon the cylindrical end beltf, is made to anyingdrawings, forming a part thereof. partially overlap the adjacenttaperingbelt 1). 6 5 1o This invention relates more particularly to g gare the knives or blades which are arthe arrangement of the knives orblades and ranged in several series or sets around the the means ofsecuring them in place upon the core between the several belts and bandsl) conical cores of machines for reducing paper and e. They are fittedand held at their inpulps toa finely-comminuted condition. Its ner edgesor backs and at their ends in the 7o 15 main objects are to increase thecapacity of cross-grooves of the belts b and b and are machines of thisclass having cores of a given notched in the ends to engage wi th'thcresize, to facilitate arranging and fastening the taining-bands e.blades in place on the cores, and generally to In assembling thepartsthe largest band is improve the construction and operation of driveninto place or shrunk upon the belt at 75 2o such machines. the largerend of the core. The knives' of the It consists in certain novelfeatures of confirst set or series are set in position in enstructionand in the peculiar arrangement gagement at one end with said band andat and combinations of parts, as hereinafter both ends withcorresponding cross-grooves particularly described, and pointed out inthe d in the proper belts, and the next smaller 8o 2 5 claims. band c isthen forced into place or shrunk In the accompanying drawings likeletters upon the next smaller belt in engagement designate the sameparts in the several figwith the converging ends of the assembled ures,knives. The knives of the succeeding sets Figure 1 is a view, partly inlongitudinal are arranged and secured in position in like 8 5 3o sectionand partlyin elevation, of aportion of manner, the last set beingfastened by the the conical core of a paper-stock-refining enband e atthe smaller end of the core. In this gine embodying the invention, thespacing- Way the knives of the several series or sets pieces between theknives and a part of the are properly spaced, easily and quicklyasknives being omitted. Fig. 2 is a fragmensembled, and securelyfastened and held in 9o 3 5 tary cross-section on the line 2 2, Fig. 1;and place on the core, wi h their backs or inner f Fig. 3 is adiagrammatic elevation of the edges resting firmly against its conicalor tacore, showing the arrangement of the knives. pering faces betweenthe annular belts, the (L designates the core, which is formed atgrooves d corresponding in depth with Athe intervals between the endsand at the ends height or thickness of the belts. y 95 4o withoutwardly-projecting annular belts l? Spacing strips or blocks h, ofwood or other and b. The intermediate belts between the suitablematerial, inserted between the ends of the core are formed in theirouter knives, as shown in Fig. 2, stiffen and support faces with centrallongitudinal channels c them laterally between the belts and bands, andwith cross-grooves d running lengthwise by which they are secured attheir ends.` roo 45 of the core, the grooves on each side of the Inmachines of this kind the core is incentral channel in each beltbreaking joints closed in a casing which is of corresponding with thoseon the opposite side except at one form and is provided on the insidewith lonpoint in the belt, and there being a greater gitudinal blades orknives, and the papernumber of grooves on that side, which is of stockwhich is to be refined is fed into the 1o 5 5o the greater diameter.Annular knife-retainsmaller end of the machine .between the oping bandse, preferably of rectangular crossposing knives on the core and in thecase and section, as shown, are fitted upon the belts l) is dischargedfrom the larger end of the over the central channel c therein, the outerj machine. On account of the divergence of faces of the belts beingtapered to correspond the knives and the increasing space berio 55 withthe tapering surface of the core between tween them toward the largerend of the the belts, as shown in Fig. 1. core the greater part of thework is done Y M Ne A by the ends of the knives, which converge orapproach each other. It has been customary heretofore to arrange theknives on the cores in continuous lengths or rows extending from end toend and in half lengths or rows extending from about the middle to thelarger end of the core midway between the other rows. With thisarrangement the greater part of the work of refining the paper-stock isdone by comparatively short vportions of the knives adjacent to thesmaller end and to the middle of the core, while the remaining portionsalong the greater part of the length of the core have done very littlework. By arranging the knives, as shown in Fig. 3, in several sets orseries around the core, so as to break joints at their ends, and byincreasing the number of knives in the successive sets or series fromthe smaller toward the larger end of the core the work is more evenlydistributed and the capacity of a machine of any given size ismaterially increased, the paper-stock being subj ected at comparativelyshort intervals as the core enlarges to the action of an increasingnumber of knives.

The several sets or series of knives or blades may for convenience ofconstruction and assemblage be started, as shown in Fig. 3, in line witheach other on one side of the core; but they may be otherwise arranged,and any desired number of series or sets of knives breaking joints atmore or less frequent intervals in the length of the core may beemployed.

Various changes in the minor details of construction and arrangement ofparts may be made within the principle and intended scope of theinvention.

I claiml. In a paper-stock-refining engine, a conical core formed withoutwardly-projecting annular belts which are grooved at intervalslengthwise of the core, annular bands tted on said belts, and knivesfitting into the grooves in said belts and notched in the ends to engagewith said bands, substantially as described.

2. In a paper-stock-reiining engine, a conical core formed at intervalsin its length with outwardly-proj ecting annular belts which are formedwith longitudinal channels in their outer faces and on opposite sidesthereof with grooves running lengthwise of the core, grooves on oppositesides of the channel in each ring breaking joints with each other, an

in the ends to engage with said bands, subi stantially as described.

3. In a paper-stock-reiining engine, a conical core formed are formed atintervals with cross-grooves running lengthwise of the core andextending to the depth of the surface of the core between said belts,annular knife-retaining bands fitted upon said belts, and knives fittingat their backs and ends into said grooves and notched at the ends toengage with said bands, the backs of the knives bearing against thesurface of the core between the belts an bands, substantially asdescribed.

4. In a paper-stock-reiining engine, a conical core formed at intervalsin itslength with outwardly-projecting annular belts which are formed atintervals with cross-grooves running lengthwise of the core, annularbands fitted on said belts, knives fitting at their backs and ends intosaid grooves and notched in the ends to engage with said bands, andspacing-pieces tted between the knives and supporting bands,substantially as described.

5. In a paper-stock-refining engine, the combination of a conical coreformed at the lsmaller end with a plain cylindrical belt and f atintervals between the ends and adjacent to the cylindrical belt withtapering belts, which are formed with radial cross-grooves runninglengthwise o f the core, the intermediate belts each having alongitudinal channel in its outer face and cross-grooves on oppositesides of the channel out of line with each other, annular bands fittedon said belts, the band at the smaller end of the core being fitted onthe cylindrical belt and the adjacent tapering belt which itv overlaps,and knives fitting at their backs and ends into corresponding grooves inadjacent belts and being notched in the ends to engage withcorresponding bands, substantially as described.

In witness whereof I hereto afiix my signature in presence of twowitnesses.

HERMAN G. SAECKER. Witnesses:

II. E. PoMERoY, P. M. CONIKEY.

at intervals in its length with 5 outwardly-projecting annular beltswhich them laterally between said ICO

